I'm currently in the midst of a series of Hold'em tournaments at a local poker room (10 events total). I decided to play all of the events as there is a separate pool of allocated money for best all-around player. Points are awarded for the players at the last 2 tables. The points race makes for a wee bit more interest nearing the bubble and final table.
Winning the points race is about equivalent to a 2nd or 3rd place cashing in one of the daily events. There are still 5 more events, so I need to manage my sleep correctly as I'm also trying to get in a healthy amount of cash game table hours in.
In the case of this series, the points race money comes from a percentage of the prize pool buyins, so it is really an underlay for anyone playing just a few events.
At the end of the month, I intend to go to Reno for 10 days for the Pot of Gold series at the Grand Sierra. Again, there is a best all-around player race, so I'll play every event here as well (18 point-earning events) The prize pool for the points race is true overlay.